Water-tube boiler.



' PATENTED JUNE 12, 1906.

' A. J. RAYNOR.

' WATER TUBE BOILER.

APPLICATION FILED MAY 11, 1903.

4 SHEETS-SHEET 1.

N/WNEEEEE ANDREW. a. (mum c:.. PK'JTfl-LITHOGRAPNZRS, wAsmNcmN. u. c.

No. 822,982. vPATEN'IHEID JUNE 12, 1906. A. I. RAYNOR.

WATER TUBE BOILER. APPLICATION FILED MAY 11,1903.

4 SHEETS-SHEET 2.

\A/TNEEEE'E //\/\/E/\/TUF i w v ALT/TREE JEHN PAYNE/R y (am/" ax ANDREW.a. mum 00.. vnnro-umocmwins. wAsumunm. n. c.

\%'NEIE ==r No. 822,982. v 7 PATENTED JUNE 12, 1906.

A. J. RAYNQR.

4 SHEETS-SHEET 3.

Mun-INTER.

ALF R51: JUHN FAY/VHF? v y M No. 822,982, PATENTED JUNE 12, 1906.

' A J. RAYNOR.

WATER TUBE BOILERQ PPPPPPPPPPPPPP ED MAY 11, 1903. I 4

4 snEnTs 5s'iI;nT

L l i? W ALFRED LJQHN FAYNUR UNITED STATES PATENT onrron.

WATER-TUBE BOILER.

To all whom it may concern.-

Be it known that I, ALFRED JOHN RAYNOR,

, a subject of the King of England, and a resident of the city ofToronto, Province of Ontario, Canada, have invented certain new anduseful Improvements in Water-Tube Boilers, of which the following is aspecification.

The object of my invention is to provide a boiler of the water-tube typeof an extremely simple and cheap form of construction, having greatheating-surface, which may be easily separated into its component partsfor cleaning or renewal purposes.

To such ends myinvention consists, in substance, of a plurality ofsuperposed watertube sections, each consisting of two horizontal endpipes arranged in parallel and in communication with one another bycurved or S- shaped cross-pipes, a coupling for each end of the endpipes forming a perpendicular water-passage, which couplings whensuperposed form riser pipes or passages, a like plurality of superposedwater-tube sections arranged alternately with the first section formedof like end pipes arranged one inside and the other outside of the endpipes ofthe first-mentioned section and connected together by likecurved or S-shaped cross-pipes each of which end pipes is provided withsimilar end couplings, winch when superposed and secured together formriser pipes or passages similar to the like riser pipes or passages ofthe inner section, pipes forming a communication between the riser pipesor passages of one section and with the like pipe or passage of theothersection immediately adjacent thereto at the top and bottom, a steam drumor dome in communication with the riser pipes or passages at one end andwith the other riser pipes or passages at the other end, a fire-box thesides and bridgewall of which form a Water-chamber in communication atone end with the riser pipes on one side at the-bottom and also incommunication in like manner with the riser-pipes on the other side, areturn-pipe in communication with the steam drum or dome and with theriserpipes on' one side at the bottom, a like return-pipe incommunication with the steam drum or dome and with the bottom portion ofthe riser-pipes at the other end, a casing inclosing the boiler-batteryformed by the superposed sections of S-shaped pipes and riser-couplingshaving'removable walls, and a smoke-flue in communication with thecasing-chamber, although it is not to be un- Specification of LettersPatent. Animation filed May 11, 1909;. Serial in). 156,601;

Patented June 12, 1906.

derstood that my invention is limited to a device necessarily comprisingat once all of the devices and parts or the exact arrangement of devicesand parts set forth, as thesam'e consists in the construction of certaindevices and parts and the particular combination and arrangement ofcertain devices and parts, all as hereinafter more fully set forth inthe specification and pointed out in claims.

My said invention is fully shown and described in the followingspecification, of which the accompanying drawings form a part, whereinsimilar letters or numerals of reference designate like or equivalentparts wherever found throughout the several views, and in which Figure 1is a side view of my improved boiler or steam-generator in centralvertical section. Fig. 2 is a front View thereof, looking in thedirection of the arrow shown in Fig. 1 in section on the line b b ofsuchfigure. Fig. 3 is a top view thereof in section on the line 0 c of F ig.1; and Fig. 4 is a front elevation of the boiler-battery, showingindotted out line the direction of removing one of the pipesections.

Referring to the drawings, the referenceletter A designates the batteryof the boiler; B, the casing-chamber; C, the water-walled fire-box; D,the steam drum or dome; E, the smoke-flue for the escape of the productsof combustion from the fuel consumed in the fire-box, and F thebrick orother outer casing in which the entire apparatus is usually inclosedupon the sides and by which it is supported in the manner usual in suchdevices.

The battery A consists of a plurality of horizontal superposedpipe-sections, each consisting of two end pipes 11, arranged in paralleland connected together by a plurality of curved or S-shaped cross-pipes12 of any desired numberusually four, as shown in Fig. 3-suchcross-pipes being secured to the end pipes by suitable connections,usually of the flanged and bolted form shown at 13. The end pipes areeach provided at either end with suitable T-couplings 14, also usuallyof the flange-and-bolt form shown, which couplings when the varioussections are secured together in the superposed position form continuousriser pipes or passages G at each of the four corners of the battery.Outside ofand parallel with the pipes 11 are arranged similar end pipes15, of similar form and construction, in line with the interstices orspaces between such pipes 12, from one to the other of which eXtendcross-pipes 16, of similar form and secured in like manner to such endpipes 15 as are the cross-pipes 12 to the end pipes 11, and such endpipes 15 are provided at either end with T-couplings 17,-similar in formto the couplings 14, which when in superposed position with the crosspipes 16 alternating with the cross-pipes 12 form riser pipes orpassages H, similar to the like riser pipes or passages formed by the T-couplings 14. The risers G on either side are connected with theadjacent riser Hat the top by a circulating-pipe 20 and at the bottom bya like circulatingpipe 21 on one side, and on the other side they enterthe waterwalled fire-box C, the arrangement being such that theprismatic pipe-piles formed at either end of the battery by each set ofadjacent riser G and H and end pipes 11 and 15 will be of the rhomboidalform shown for the purpose of facilitating the removal of the varioussections, as hereinafter set forth. The fire-box C is formed of boilermetal or other suitable material in such manner that the same isprovided on either side with a hollow side -wall water-chamber 22, whichchambers are in communcation with one another at the rear of the'fireboXby a like hollow Water-chambered bridge-wall 23, and such side wallwater-chambers 22 are in communication one with one and one with theother of the rhomboidal prismatic pipe-piles adjacent to the bottomthereof by way of suitable pipes 24 and 25, and such piles are also incommunication at the bottom one with a feed-pipe 26 and the other with ablow-off pipe 27. The fire-box when used for solid fuel is also providedwith suitable grate-bars 28 of any desired form. The boiler-battery soformed is supported by and inclosed in a radiation-casing 29, forming ahot-air chamber M, the walls and top plates of said radiation-chamberbeing secured together by suitable corner-plates 29, secured. at theedges by bolts, so that the same maybe removed bodily for the purpose ofgaining access to the battery of pipes and tubes, the risers G and Halone extending upward through the top plate of such radiationchamberand one set thereof being in communication with the steam drum or dome Dat one end thereof by way of a pipe 30 and the other set being incommunication with such drum by way of a similar pipe 31. The steam drumor dome is also usually provided with a return-water pipe 32, located atthe 1 center, as shown in Fig. 1, from which a circulating return-pipe33 leads to the bottom of the rear rhomboidal prismatic pipe-pile, and alike circulating return-pipe 34 leads to the bottom of the front similarpipe-pile.

The battery is of course provided with the usual accessoriessuch aswater-gages, pressure-gages, gage-cocks, &c. ,but these forming no partof my invention I have not deemed it necessary to show more than thewatergage glass, which is usually in communication by way of suitablepipes 35 and 36 with the steam drum or dome D and with the front pipe31, which forms a communication between that end of the drum and the topof the adjacent rhomboidal pipe-pile.

In communication with the radiationchamber at the top at convenientpoints, usually adjacent to the prismatic pipe-piles, is a lead-flue 37,in communication with a main smoke-flue E, leading to a suitablesmoke-stack. (Not shown.)

By this construction it will be seen that should any portion of any ofthe superposed sections forming the sections of the battery blow out orbecome scaled by simply removing one wall of the radiating-chamber andtaking out thebolts securing the four couplings forming the risers atthe four corners thereof such section may be removed bodily, repaired orcleaned, and reinserted without the slightest disturbance of the othersections, such removal being either to the front or rear, according tothe position of the section, it being always removed outward from therisers to which it is connected, as fully shown in dotted lines in Fig.4 of the drawings.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is

1. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycross-pipes, substan tially as and for the purposes set forth.

2. A watertube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved cross-pipes, substantially as set forth.

3. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together byS-shaped cross-pipes,

IIO

superposed one upon the other, the couplings in the same plane beingconnected in pairs to one another by end pipes which end pipes areconnected together by cross-pipes, a second battery-section of similarconstruction the component sections of which formed of theriser-couplings end and cross pipes have their cross-pipes alternatelyarranged between the cross-pipes of the first-named sections, and pipesconnecting the adjacent risers of the two sections together at the topand bottom, substantially as set forth..

6. A water-tube boiler comprising a bat tery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved cross-pipes, a second battery-section of similar construc tionthe component sections of which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, and pipes connecting theadjacent risers of the two sections together at the top and bottom,substantially as set forth.

7. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together byS-shaped cross-pipes, a second. battery-section of similar constructionthe component sections of which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged. between thecross-pipes of the first-named section, and pipes connecting theadjacent risers of the two sections together at the top and bottom,substantially as set forth.

8. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a' plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycrosspipes, a second battery-section of similar construction to thefirst section the component sections of which formed of theriser-couplings end and cross pipes have their cross-pipes alternatelyarranged. between the cross-pipes of the firstnamed sections, and pipesconnecting the adjacent risers of the two sections together at the topand bottom, and a steam drum or dome in communication with the riser atthe top, substantially as set forth.

9. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved cross-pipes, a second battery-section of similar construc tionthe component sections of which formed of the risercouplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, and pipes connecting theadjacent risers of the two sections together at the top and bottom, anda steam drum or dome in communication with the risers at the top,substantially as set forth.

10. A water-tube boiler comprising a bat tery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together byS-shaped cross-pipes, a second battery-section of similar constructionto the first section the component sections of which formed of theriser-couplings end and cross pipes have their cross-pipes alternatelyarranged between the cross-pipes of the first-named section, pipesconnecting the adjacent risers of the two sections together at the topand bottom, and a steam drum or dome in communication with the risers atthe top, substantially as set forth.

11. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and botto1n, and afire-box having the side andbridge walls in the form of a water-chamberin communication with the battery, substantially as set forth.

12. A water-tube boiler comprising a bat tery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, and afire-box having the side and bridge walls in the form of a water-chamberin communication with the battery, substantially as set forth.

13. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together by$shaped. cross-pipes, a second battery-section of similar constructionthe component sections of which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes of the first-named. section, pipes connecting the adjacentrisers oi the two sections together at the top and. bottom, and alire-box having the side and bridge walls in the liorm of awater-chamber in communication with the battery, substantially as setforth.

14. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected. inpairs to one another by end pipes which end pipes are connected.together by cross-pipes, a second battery-section of similarconstruction the component sections of which formed of theriser-couplings end. and cross pipes have their cross-pipes alternatelyarranged between the cross-pipes of the i'irst named section, pipesconnecting the adjacent risers of the two sections together at the topand bot tom, a steam drum or dome in communication with the risers atthe top, and a fire-box having the side and bridge walls in the form ofa water-chamber in communication with the battery, substantially as andfor the purposes set forth.

15. A water-tube boiler comprising a bat tery composed. of a pluralityof riser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected togetherby'curved cross-pipes, a second battery-section of similar constructionthe component sections of whichformed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between. thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, a steam drumor dome in communication with. the risers at the top, and a lirel)0Xhaving the side and bridge walls in the form of a water-chamber incommunication with the battery, substantially as set forth.

16. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings su perposed oneupon the other, the couplings in the same plane being connected .in.pairs to one another by end pipes which end pipes are connected.together by S-shaped cross-pipes, a second battery-section of similarconstruction the component sections of which formed of theriser-couplings end and cross pipes have their cross-pipes alternatelyarranged between the cross-pipes of the firstnamed section, pipesconnecting the adjacent risers of the two sections together at the topand bottom, a steam drum or dome in communication with the risers at thetop, and a firebox having the side and. bridge walls in-the form of awater-chamber in communication with the battery, substantially as setforth.

17. A water-tube boiler comprising a bat tery composed of a plurality ofriser-pipes each formed. of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, and pipes connecting theadjacent risers of the two sections together at the top and bottom, thepipe-piles at the ends of the battery formed by the risers, endv pipesand connecting the top and bottom pipes being each in the form of arhomboidal prism, substantially as set forth.

18. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved cross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end andcross-pipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, and pipes connecting theadjacent risers of the two sections together at the top and bottom, thepipe-pile at the end of the battery formed by the risers end pipes andconnecting top and bottom pipes being each in the form of a rhomboidalprism, substantially as set forth.

19. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-eouplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together byS-shaped cross-pipes, a second battery-section of similar constructionthe component sections of which formed of the riser-couplings end. and.cross pipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, and pipes connecting theadjacent risers of the two sections together at the top and bottom, thepipe-piles at the end of the battery formed. by'the risers, end pipesand connecting top and bottom pipes being each in the form of arhomboidal prism, substantially asset forth. v

20. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycross-pipes, a second.

battery-section of similar construction the component sections of whichformed of the riser-couplings end and cross pipes have their cross-pipesalternately arranged between the crosspipes of the first-named section,pipes connecting the adjacent risers of the two sections together at thetop and bottom, and a return circulating pipe or pipes forming acommunication between the top and bottom portions of the boiler,substantially as set forth.

21. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved cross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-na1ned section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, and a returncirculating pipe or pipes forming a communication between the top andbottom portions of the boiler, substantially as set forth.

22. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together byS-shaped cross-pipes, a second battery-section of similar constructionthe component sections of which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, and a returncirculating pipe or pipes forming a communication between the top andbottom portions of the boiler, substantially as and for the purposes setfort 23. A water-tube boiler comprising a battery composed of aplurality of riser-pipes each formed of a plurality of T-couplingssuperposed one upon the other, the couplings in the same plane beingconnected in pairs to one another by end pipes which end pipes areconnected together by cross-pipes, a second battery-section of similarconstruction the component sections of. which formed of theriser-couplings end and cross pipes have their cross-pipes alternatelyarranged between the cross-pipes of the first-named section,.pipesconnecting the adjacent risers of the two sections together at the topand bottom, a steam drum or dome in communication with the riser at thetop, and a return circulating pipe or pipes forming a communicationbetween the top and bottom portions of the boiler, substantially as setforth.

24. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved crosspipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, a steam drumor dome in communication with the risers at the top, and a returncirculating pipe or pipes forming a co1nmunication between the top andbottom portions of the boiler.

25. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the risercouplings end and crosspipes of the firstnamed section, pipes connecting the adjacent risers ofthe two sections together at the top and bottom, a fire-box having theside and bridge walls in the form of a water-chamber in communicationwith the battery, and a return circulating pipe or pipes forming acommunication between the top and bottom portions of the boiler.

26. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved cross-pipes, a second battery-section of similar construc tionthe component sections of which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting, the adjacentrisers of the two sections together at the top and bottom, a fire-boxhaving the side and bridge walls in the form of a water-chamber incommunication with the battery, and a return circulating pipe or pipesforming a communication between the top and bottom portions of theboiler.

27. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of Tcouplings superposed one uponthe other, the couplings in the same plane being connected in pairs toone another by end pipes which end pipes are connected together byS-shaped cross-pipes, a second battery-section of similar constructionthe component sections of which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes of the firstnamed section, pipes connecting the adj acentrisers of the two sections together at the top and bottom, a lire-boxhaving the side and bridge walls in the form of a water-chamber incommunication with the battery, and a return circulating pipe or pipesforming a communication between the top and bottom portions of theboiler.

28. A water-tube boiler comprising a bat tery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-named sections, and pipes connecting theadjacent risers oi the two sections together at the top and bottom, theriser-couplings of one set of sections being staggered to theriser-couplings of the other set of sections.

29. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of Tcouplings superposed one uponthe other, the couplings in the same plane being connected in pairs toone another by end pipes which end pipes are connected together bycurved cross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, and pipes connecting theadjacent risers of the two sections together at top and bottom, theriser-couplings of one set of sections being staggered to theriser-couplings of the other set of sections.

30. A water-tube boiler comprising a bat tery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together byS-shaped cross-pipes, a second battery-section of similar constructionthe component sections of which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes of the first-named sections, and pipes connecting theadjacent risers of the two sections together at the top and bottom, theriser-couplings of one set of sections being staggered to theriser-coupling of the other set of sections.

31. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycross-pipes, a second battery-section of similar construction to thefirst section the component sections of which formed of theriser-couplings end and cross pipes have their cross-pipes alternatelyarranged-between the cross-pipes of the firstnamed section, and pipesconnecting the adjacent risers of the two sections together at the topand bottom, and a steam drum or dome in communication with the riser atthe top, the riser-couplings of one set of sections being staggered tothe riser-couplings of the other set of sections.

32. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes, which end pipes are connected together bycurved cross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pip es alternately arranged between thecross-pipes of the first-named section, and pipes connecting theadjacent risers of the two sections together at the top and bottom, anda steam drum or dome in communication with the risers at the top, theriser-couplings of one set of sections being staggered to theriser-couplings of the other set of sections.

33. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together byS-shaped cross-pipes, a second-battery section of similar constructionto the first section the component sections of which formed of theriser-couplings end and cross pipes have their cross-pipes alternatelyarranged between the cross-pipes of the first-named section, pipesconnecting the adjacent risers of the two sections together at the topand bottom, and a steam drum or dome in communication with the risers atthe top, the riser-couplings of one set of sections being staggered tothe riser-couplings of the other set of sections.

34. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycrosspipes, a second battery-section of similar construction thecomponent sections of which formed of the riser couplings end and crosspipes have their cross-pipes alternately arranged between the crosspipesof the first-named section, pipes connecting the adjacent risers of thetwo sections together at the top and bottom, and a fire-box having theside and bridge walls in the form of a water-chamber in communicationwith the battery, the risercouplings of one set of sections beingstaggered to the riser-couplings of the other sections.

35. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of IT-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, and afire-box having the side and bridge walls in the form of a water-chamberin communication with the battery, the riser-couplings of one set ofsections being staggered to the riser-couplings of the other set ofsections.

36. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of Tcouplings superposed one uponthe other, the couplings in the same plane being connected in pairs toone another by end pipes which end pipes are connected together byS-shaped cross-pipes, a second battery-section of similar constructionthe component sections of which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecr0sspipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, a fire-boxhaving the side and bridge walls in the form of a water-chamber incommunication with the battery, the riser-couplings of one set ofsections being staggered to the riser-couplings of the other set ofsections.

37, A water-tube boiler comprising a bat: tery composed of a pluralityof riser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycross-pipes, a second battery of similar construction the componentsections of which formed of the risercouplings end and cross pipes havetheir cross-pipes alternately arranged between the cross-pipes of thefirst-named section, pipes connecting the adacent risers of the twosections together at the top and bottom, a steam drum or dome incommunication with the risers at the top, and a fire-box having the sideand bridge walls in the form of a water chamber in communication withthe battery, the riser-couplings of one set of sections be ing staggeredto the riser-couplings of the other set of sections.

38. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved cross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the risercouplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes oi the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, a steam drumor dome in communication with the risers at the top, and a fireboxhaving the side and bridge walls in the form of a water-chamber inconm'lunication with the battery, the riser-couplings of one set ofsections being staggered to the risercouplings of the other set ofsections.

39. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together byS-shaped cross-pipes, a second battery-section of similar constructionthe component sections of which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, a steam drumor dome in communication with the risers at the top, and a fireboxhaving the side and bridge walls in the form of a water-chamber incommunication with the battery, the riser-couplings ol one set ofsections being staggered to the risercouplings of the other set ofsections.

40. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed ol a plurality of T-couplings superposed oneupon the other, the couplingsin the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged be tween thecross-pipes of the first-named section, and pipes connecting theadjacent risers oi the two sections together at the top and bottom, thepipe-piles at the ends of the bat tery formed by the risers, end pipesand connecting the to p and bottom pipes being each in the form of arhomboidal prism, the risercouplings of one set of sections beingstaggered. to the risercouplings of the other set 01 sections.

41. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed 01 a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved. cross-pipes, a second batter -section of similar constructionthe component sections ol which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes of the iirst-named section, and pipes connecting theadjacent risers of the two sections together at the top and bottom, thepipe-pile at the end of the battery formed by the risers end pipes andconnecting top and. bottom. pipes being each in the form of rhomboidalprism, the risercouplings of one set of sections being staggered to theriser-couplings of the other set of sections.

42. A water-tube boiler comprising a bat tery composed of a plurality olriser-pipes each formed of a plurality of T-couplings superposed. oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together byS-shaped cross-pipes, a second battery-section of similar constructionthe component sections of which formed oi the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes oi the ilirst-named section, and pipes connecting theadjacent risers of the two sections together at top and bottom, thepipe-piles at the end of the bat tery formed by the risers, end pipesand connecting top and bottom pipes being each in the form of arhomboidal prism, the risercouplings of one set of sections being staggered to the risei'-cou )lings of the other set of sections.

43. A water-tube boiler comprising a battery composed of a plurality ofriseppipcs each formed of a plurality of T-couplings superposed one uponthe other, the couplings in the same plane being connected in pairs toone another by end pipes which end pipes are connected. together bycross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adj acentrisers of the two sec+ tions together at the top and bottom, and areturn circulating pipe or pipes forming a communication between the topand bottom portions of the boiler, the riser-couplings of one set ofsections being staggered to the riser-couplings oi the other set ofsections.

4.4. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved crosspipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, an d. areturn circulating pipe or pipes forming a communication between the topand bottom portions of the boiler, the risercouplings of one set ofsections being staggered to the riser-couplings oi" the other set ofsections.

45. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together byS-shaped cross-pipes, a second battery-section of similar constructionthe component sections of which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, and a returncirculating pipe or pipes forming a communication between the top andbottom portions of the boiler, the riser-couplings of one set ofsections being staggered to the riser-couplings of the other set oisections.

46. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed 01 a plurality of-T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the "first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bot tom, a steam drumor dome in communication with the risers at the top, and a returncirculating pipe or pipes forming a communication between the top andbottom portions of the boiler, the riser-couplings of one set ofsections being staggered to the riser-couplings of the other set ofsections.

47. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved cross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, a steam drumor dome in communication with the risers at the top, and a returncirculating pipe or pipes forming a communication between the top andbottom portions of the boiler, the riser-couplings of one set ofsections being staggered to the riser-couplings of the other set ofsections.

48. A water-tube boiler comprising'a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser couplings end and crosspipes have their cross pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, a fire-boxhaving the side and bridge walls in the form of a water-chamber incommunication with the battery, and a return circulating pipe or pipesforming a communication between the top and bottom portions of theboiler, the riser-couplings of one set of sections being staggered tothe riser-couplings of the other set of sections.

49. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes which end pipes are connected together bycurved cross-pipes, a second battery-section of similar construction thecomponent sections of which formed of the riser-couplings end and crosspipes have their cross-pipes alternately arranged between thecross-pipes of the first-named section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, a fire-boxhaving the side and bridge walls in the form of a water-chamber incommunication with the battery, and a return circulating pipe or pipesforming a communication between the top and bottom portions of theboiler, the riser-couplings of one set of sections being staggered tothe riser-couplings of the other sections.

50. A water-tube boiler comprising a battery composed of a plurality ofriser-pipes each formed of a plurality of T-couplings superposed oneupon the other, the couplings in the same plane being connected in pairsto one another by end pipes, which end pipes are connected together byS-shaped crosspipes, a second battery-section of similar con structionthe component sections of which formed of the riser-couplings end andcross pipes have their cross-pipes alternately arranged between thecross-pipes of the firstnamed section, pipes connecting the adjacentrisers of the two sections together at the top and bottom, a fire-boxhaving the side and bridge walls in the form of a water-chamber incommunication with the battery, and a return circulating pipe or pipesforming a com- -munication between the top and bottom portions of theboiler, the riser-couplings of one set of sections being staggered tothe risercouplings of the other set of sections.

51. In a water-tube boiler the combination with a fire-box water-chamberand a steam-drum having ingress and egress openings in the bottomthereof and passages from said ingress-openings communicating 'with theextreme upper passages between tubes in the water-tube battery, of aplurality of return-tubes leading from the said egressopening in thebottom of the steam-drum and extending beyond and without the heat zoneof said fire-box and emptying adjacent to the bottom of said fire-boxwater-chamber through a lower circulating-pipe, substantially asdescribed.

52. In a device of the class described, in combination, a water-tubebattery of a plurality of sections, having one section formed ofT-couplings, superimposed one 011 the other and connected in pairs byend pipes, and cross-pipes connecting said end pipes, and a sectionsimilarly arranged having its cross-pipes alternate with the cross-pipesof the first section, and pipes connecting the adjacent risersrespectively of the two sections at the top and bottom thereof, asteam-drum surmounting said water-tube battery having ingress and egressopenings in the bottom thereof, a plurality of pipes secured to andcommunicating with the uppermost portion of said battery and leading tosaid ingressopenings and lending support to said drum, a fire-box havinga hollow wall forming a water-chamber, and return-tubes leading fromsaid egress-opening in the steamdrum and extending beyond and withoutthe heat zone of the fire-box and emptying to the bottom of the saidfire-box water-chamber, substantially as described.

53. In a water-tube boiler, the combination with a hot-air chamberentirely inclosing the battery of water and steam tubes, of a fire-boXthe sides and bridge walls of which form a continuous connectedwater-chamber which is in communication with the riserpipes of thebattery and is connected by a perpendicular return-pipe with the bottomof the steam-drum.

54. In a water-tube boiler, the combination with a hot-air chamberentirely inclosing the battery of water and steam tubes, of a fire-boxthe side and bridge walls of which form a continuous connectedWater-chamber which is in communication With the riserpipes of thebattery and is connected by a perpendicular return-pipe located outsideof the battery-casing forming the heatingchamber with the bottom of thesteam-drum.

55. In a water-tube boiler, the combination with a plurality ofriser-pipes, of a plurality of curved substantially S-shaped hori zontalcirculating-pipes forming communication between the riser-pipes, thecurves of the pipes being horizontal and all in the same plane and theends of such S-shaped pipes extending beyond the loops of the S, andcommunicating with straight pipes.

56. In a water-tube boiler, the combination with a plurality ofriser-pipes, of a plurality of curved substantially S-shaped horizontalcirculating-pipes forming communicao tions between the riser-pipes, anda casing inclosing the battery so formed in such man; ner as toconstitute a heating-chamber, the curves of the pipes being horizontaland all in the same plane and the ends of such S-shaped 3 5 rality ofcurved horizontal circulating-pipes 4o superposed in series one upon theother and in free communication at one end with the riser or risers onone side of the battery so formed, and at the other end with the riseror risers on the opposite side.

58. A circulating-tube for Wateretube boilers of the shape of a crosselongated S the ends of which extend outward beyond the loops of the S,and all the curves of which are in the same plane.

In testimony whereof I have aflixed my signature in the presence of twowitnesses. A

ALFRED JOHN RAYNOR.

Witnesses:

OSCAR A. MIoHEL, A. RIEHL.

